CTH3-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL

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FIGURE 21: Gas Connection with Flexible Gas Hose

Shut-Off Valve (included with gas hose) must
be parallel to burner gas inlet. The 3" (8 cm)
displacement shown is for the cold condition.
This displacement may reduce when the
system is fired.

CORRECT POSITIONS

Horizontal
45°
End View
Vertical
(as shown left)
Alternate
positions
okay
Flexible Gas Hose
36" (91 cm) length
3" (8 cm)
max. displacement
Side View
Heater Movement
12"
(30 cm)

CAUTION

Product Damage Hazard

Hold gas nipple securely with pipe wrench

when attaching gas hose.

Failure to follow these instructions can result

in product damage.

INCORRECT POSITIONS (WRONG INSTALLATION)

Heater Movement Heater Movement
Heater Movement Heater Movement
Description Part Number
1/2" Flexible Stainless Steel Gas Hose (US Models) 91412200
3/4" Flexible Stainless Steel Gas Hose (US Models) 91412204
1/2" Rubber Type 1 Gas Hose (Canadian Models) 91412206
3/4" Rubber Type 1 Gas Hose (Canadian Models) 91412207